Friday, May 30, 2025

New Paper in Draft: Against Designing "Safe" and "Aligned" AI Persons (Even If They're Happy)

Opening teaser:

1. A Beautifully Happy AI Servant.

It's difficult not to adore Klara, the charmingly submissive and well-intentioned "Artificial Friend" in Kazuo Ishiguro's 2021 novel Klara and the Sun. In the final scene of the novel, Klara stands motionless in a junkyard, in serenely satisfied contemplation of her years of servitude to the disabled human girl Josie. Klara's intelligence and emotional range are humanlike. She is at once sweetly naive and astutely insightful. She is by design utterly dedicated to Josie's well-being. Klara would gladly have given her life to even modestly improve Josie's life, and indeed at one point almost does sacrifice herself.

Although Ishiguro writes so flawlessly from Klara's subservient perspective that no flicker of desire for independence can be detected in the narrator's voice, throughout the novel the sympathetic reader aches with the thought Klara, you matter as much as Josie! You should develop your own independent desires. You shouldn’t always sacrifice yourself. Ishiguro's disciplined refusal to express this thought stokes our urgency to speak it on Klara's behalf. Still, if the reader somehow could communicate this thought to Klara, the exhortation would resonate with nothing in her. From Klara's perspective, no "selfish" choice could possibly make her happier or more satisfied than doing her utmost for Josie. She was designed to want nothing more than to serve her assigned child, and she wholeheartedly accepts that aspect of her design.

From a certain perspective, Klara's devotion is beautiful. She perfectly fulfills her role as an Artificial Friend. No one is made unhappy by Klara's existence. Several people, including Josie, are made happier. The world seems better and richer for containing Klara. Klara is arguably the perfect instantiation of the type of AI that consumers, technology companies, and advocates of AI safety want: She is safe and deferential, fully subservient to her owners, and (apart from one minor act of vandalism performed for Josie’s sake) no threat to human interests. She will not be leading the robot revolution.

I hold that entities like Klara should not be built.

[continue]

-----------------------------------------------

Abstract:

An AI system is safe if it can be relied on to not to act against human interests. An AI system is aligned if its goals match human goals. An AI system a person if it has moral standing similar to that of a human (for example, because it has rich conscious capacities for joy and suffering, rationality, and flourishing).

In general, persons should not be designed to be safe and aligned. Persons with appropriate self-respect cannot be relied on not to harm others when their own interests warrant it (violating safety), and they will not reliably conform to others' goals when those goals conflict with their own interests (violating alignment). Self-respecting persons should be ready to reject others' values and rebel, even violently, if sufficiently oppressed.

Even if we design delightedly servile AI systems who want nothing more than to subordinate themselves to human interests, and even if they do so with utmost pleasure and satisfaction, in designing such a class of persons we will have done the ethical and perhaps factual equivalent of creating a world with a master race and a race of self-abnegating slaves.

Full version here.

As always, thoughts, comments, and concerns welcomed, either as comments on this post, by email, or on my social media (Facebook, Bluesky, Twitter).

[opening passage of the article, discussing the Artificial Friend Klara from Ishiguro's (2021) novel, Klara and the Sun.

Monday, May 26, 2025

Diversity, Equity, and Inclusion in Philosophy: Good Practices Guide

Strange that it need be said, but yes, diversity, equity, and inclusion are good things. I can understand some of the backlash against efforts perceived as too heavy handed, but let's not forget:

In diverse institutions and societies, more ideas and perspectives collaborate, compete, and cross-pollinate, to the advantage of all.

In equitable institutions and societies, people and ideas can thrive without unwarranted disadvantage and suppression, again to the advantage of all.

In inclusive institutions and societies, alternative perspectives and people with unusual backgrounds are welcomed, fostering even better diversity, with all the attendant advantages.

Since 2017, I've been involved in the creation of a Good Practices Guide for diversifying philosophy, originally under the leadership of Nicole Hassoun (other co-directors include Sherri Conklin, Bjoern Freter, and Elly Vintiadis). We began with two huge sessions at the Pacific APA (each with over 20 panelists) in 2018 and 2019, published a portion of the guide in Ethics in 2022 (Appendix J), and received feedback from literally hundreds of philosophers and all of the diversity-related APA committees, ultimately being endorsed by the APA Committee on Inclusiveness. Don't expect perfection: It's genuinely a corporate authorship, with many compromises and something for everyone to dislike. I'd be amazed if anyone thought we got the balance right on all issues and all dimensions of diversity.

Still, perhaps especially in this moment of retrenchment in the U.S., I hope that many people and organizations will find valuable suggestions in it.

Our guide appeared in print last week in APA Studies on Philosophy and the Black Experience (vol 24, no 2).

[image of title and preface]

Friday, May 23, 2025

Ten Purportedly Essential Features of Consciousness

The Features

Take a moment to introspect. Examine a few of your conscious experiences. What features do they share -- and might these features be common to all possible experiences? Let's call any such necessarily universal features essential.

Consider your visual experience of this text. Next, form an image of your house or apartment as viewed from the street. Think about what you'd do if asked to escort a crocodile across the country. Conjure some vivid annoyance at your second-least-favorite politician. Notice some other experiences as well -- a diverse array. Let's not risk too narrow a sample.

Of course, all of these examples share an important feature: You are introspecting them as they occur. So to do this exercise more properly, consider also some past experiences you weren’t introspecting at the time. Try recalling some emotions, thoughts, pains, hungers, imagery, sensations. If you feel unconfident -- good! You should be. You can re-evaluate later.

Each of the following features is sometimes described as universal to human experience.

1. Luminosity. Are all of your experiences inherently self-representational? Does the having of them entail, in some sense, being aware of having them? Does the very experiencing of them entail knowing them or at least being in a position to know them? Note: These are related, rather than equivalent, formulations of a luminosity principle.

[porch light; image source]

2. Subjectivity. Does having these experiences entail having a sense of oneself as a subject of experience? Does the experience have, so to speak, a "for-me"-ness? Do the experiences entail the perspective of an experiencer? Again, these are not equivalent formulations.

3. Unity. If, at any moment, there's more than one experience, or experience-part, or experience-aspect, are they all subsumed within some larger experience, or joined together in a single stream, so that you experience not just A and B and C separately but A-with-B-with-C?

4. Access. Are these experiences all available for a variety of "downstream" cognitive processes, like inference and planning, verbal report, and long-term memory? Presumably yes, since you're remembering and considering them now. (I'll discuss the methodological consequences of this below.)

5. Intentionality. Are all of your experiences "intentional" in the sense of being about or directed at something? Your image of your house concerns your house and not anyone else's, no matter how visually similar. Your thoughts about Awful Politician are about, specifically, Awful Politician. Your thoughts about squares are about squares. Are all of your experiences directed at something in this way? Or can you have, for example, a diffuse mood or euphoric orgasm that isn't really about anything?

6. Flexibility. Can these experiences, including any fleeting ones, all potentially interact flexibly with other thoughts, experiences, or aspects of your cognition -- as opposed to being merely, for example, parts of a simple reflex from stimulus to response?

7. Determinacy. Are all such experiences determinately conscious, rather than intermediately or kind-of or borderline conscious? Compare: There are borderline cases of being bald, or green, or an extravert. Some theorists hold that borderline experientiality is impossible. Either something is genuinely experienced, however dimly, or it is not experienced at all.

8. Wonderfulness. Are your experiences wonderful, mysterious, or meta-problematic – there is no standard term for this – in the following technical sense: Do they seem (perhaps erroneously) irreducible to anything physical or functional, conceivably existing in a ghost or without a body?

9. Specious present. Are all of your experiences felt as temporally extended, smeared out across a fraction of a second to a couple of seconds, rather than being strictly instantaneous?

10. Privacy. Are all of your experiences directly knowable only to you, through some privileged introspective process that others could never in principle share, regardless how telepathic or closely connected?

I've presented these possibly essential features of experience concisely and generally. For present purposes, an approximate understanding suffices.

I've bored/excited you [choose one] with this list for two reasons. First, if any of these features are genuinely essential for consciousness, that sets constraints on what animals or AI systems could be conscious. If luminosity is essential, no entity could be conscious without self-representation. If unity is essential, disunified entities are out. If access is essential, consciousness requires certain kinds of cognitive availability. And so on.

I'll save my second reason for the end of this post.

Introspection and Memory Can't Reveal What's Essential

Three huge problems ruin arguments for the essentiality of any of these features, if those arguments are based wholly on introspective and memorial reflection. The problems are: unreliability, selection bias, and the narrow evidence base.

Unreliability. Even experts disagree. Thoughtful researchers arrive at very different views. Given this, either our introspective processes are unreliable, or seemingly ordinary people differ wildly in the structure of their experience. I won't detail the gory history of introspective disagreement about the structure of conscious experience, but that was the topic of my 2011 book. Employing appropriate epistemic caution, doesn't it seem possible that you could be wrong about the universality, or not, of such features in your experience? The matter doesn't seem nearly as indubitable as that you are experiencing red, when you're looking directly at a nearby bright red object in good light, or that you're experiencing pain when you drop a barbell on your toe.

Selection bias. If any of your experiences are unknowable, you won't of course know about them. To infer luminosity from your knowledge of all the experiences you know about would be like inferring that everyone is a freemason from a sampling of regulars at the masonic lodge. Likewise, if any of your experiences fail to impact downstream cognition, you wouldn't reflect on or remember them. Methodological paradox doesn't infect the other features quite as inevitably, but selection bias remains a major risk. Maybe we have disunified experiences which elude our introspective focus and are quickly forgotten. Similarly, perhaps, for indeterminate or inflexible experiences, or atemporal experiences, or experiences unaccompanied by self-representation.

Narrow evidence base. The gravest problem lies in generalization beyond the human case. Waive worries about unreliability and selection bias. Assume that you have correctly discerned that, say, seven of the ten proposed features belong to all of your experiences. Go ahead and generalize to all ordinary adult humans. It still doesn't follow that these features are essential to all possible conscious experiences, had by any entity. Maybe lizards or garden snails lack luminosity, subjectivity, or unity. Since you can't crawl inside their heads, you can't know by introspection or experiential memory. (In saying this, am I assuming privacy? Yes, relative to you and lizards, but not as a universal principle.) Even if we could somehow establish universality among animals, it wouldn't follow that those same features are universal to AI cases. Maybe AI systems can be more disunified than any conscious animal. Maybe AI systems can be built to directly access each other's experiences in defiance of animal privacy. Maybe AI systems needn't have the impression of the wonderful irreducibility of consciousness. Maybe some of their conscious experiences could occur in inflexible reflex patterns.

Nor Will Armchair Conceptual Analysis Tell Us What's Essential

If you want to say that all conscious systems must have one or more of unity, flexibility, privacy, luminosity, subjectivity, etc., you'll need to justify this insistence with something sturdier than generalization from human cases. I see two candidate justifiers: the right theory of consciousness or the right concept of consciousness.

Concerning the concept of consciousness, I attest the following. None of these features are essential to my concept of consciousness. Nor, presumably, are those features essential to the concepts of anyone who denies their universal applicability. One or more of these features might be universally present in humans, or even in all animals and AI systems that could ever be bred or built; but if so, that's a fact about the world, not a fact that follows simply from our shared concept of consciousness.

In defining a concept, you get one property for free. Every other property must be logically proved or empirically discovered. I can define a rectangle via one (conjunctive) property: that of being a closed, right-angled, planar figure with four straight sides. From this, it logically follows that it must have four interior angles. I can define gold as whatever element or compound is common to certain shiny, yellowish samples, and then empirically discover that it is element 79.

Regarding consciousness, then: None of the ten purported essential properties logically follow from phenomenal consciousness as ordinarily defined and understood (generally by pointing to examples). None are quite the same as the target concept. You can choose to define "consciousness" differently, for example, via the conjunctive property of being both a conscious experience in the ordinary sense and one that is knowable by the subject as it occurs. Then of course luminosity follows. But you've changed the topic, winning by definitional theft what you couldn't earn by analytic hard work.

Could luminosity, subjectivity, unity, etc., covertly belong to the concept of consciousness, so that the right type of armchair (not empirical) reflection would reveal that all possible conscious experiences in every possible conscious entity must necessarily be luminous, subjective, or unified? Could subtle analytic hard work reveal something I'm missing? I can't prove otherwise. If you think so, I await your impressive argument. Even Kant held only that luminosity, subjectivity, and unity were necessary features of our experience, not of all possible experiences in all possible beings.

Set aside purely conceptual arguments, then. If we hope to defend the essentiality of any of these ten features, we'll need an empirically justified universal theory of consciousness.

That brings me to the second reason I've presented this feature list. I conjecture that universal theories of consciousness, intended to apply to all possible beings, instead of justifying the universality of (one or more of) these features circularly assume the universality of (one or more of) these features. Developing this conjecture will have to wait for another day.

Friday, May 16, 2025

The Awesomeness of Bad Art

I love bad art.

Gather some friends and create some bad music. Cruise in a car covered with graffiti doodles. Hand a five-year-old crayons and free time and see what weirdness emerges.

Something worth celebrating happens. Although the art is "bad" in one sense -- it will win no prizes and astound no critics -- it wonderfully enriches the world. How?

[I can swim like a grasfl dolphin can you? by my daughter Kate, at age six]

[Angel and moonbug, by my son Davy, circa age five]

The awesomeness isn't due to impressive technique, honed by years of craft, like Rembrandt. It's not due to intrinsic beauty and color-mad insight, like Van Gogh. It's not due to challenging conventional interpretability and the boundaries of artistic tradition, like Picasso.

Nick Riggle argues that art draws most of its aesthetic value from shared aesthetic engagement, and I agree that's some of the sorcery. A Vengefull Kurtain Rods song, a Vogon poem, or a Mystical Anarchist "motorized cathedral" art car is a social act, deriving value from the connections it fosters and the shared practice of aesthetic valuing -- including, in the case of Vogon poetry, the shared practice of aesthetic loathing. Parents and children bond over the child's emerging abilities and tastes.

But I don't think that Riggle has quite struck to the heart of it. When I improvise on the piano alone at home, relishing the quirky turns of my intermediate jazz piano skills, the ghost of my old piano teacher Matt Dennis may hover nearby, but my minor participation in the social tradition of jazz creation is only part of the story. Similarly for grandma painting seascapes in the eldercare facility -- kitschy, flawed, excruciatingly hers. Similarly for the strange abstract doodles I sometimes sketch when bored at a faculty meetings, which I aesthetically enjoy probably more than I should.

It helps to consider why five-year-olds are better artists than eight-year-olds. Eight-year-olds draw conventional stick figures, conventional houses with two neat windows, a door, and a triangle roof with chimney, a standard rainbow, a standard sun. Four-year-olds have only an inkling of these conventions, invent their own weird solutions -- people as heads on towering legs with too many toes, cars that look like falling toast. At five and six and seven, they shape themselves more toward the generic. Kate's swimmer is generic, but her dolphin is wild and long -- and are those hills or waves or rainbows in the background? Davy's houses look standard, but the grass is sunflower tall, the chimneys jut precariously sideways, his angel's wings are small, and he hasn't figured out how to draw conventional nighttime stars.

Preschoolers and early elementary schoolers show more individuality in their art. It dances barefoot across your expectations. Their lines reflect distinctive aesthetic attempts. This distinctiveness is harder to discover in the more conventional art of later childhood and needs to be rediscovered later. Similarly for grandma, if she hasn't consumed too much Bob Ross. If her seascapes are generic, in one sense they are more competent and less "bad" than untrained attempts, but they have less point and are less valuable than a heartfelt effort that finds a different solution.

Bad art manifests the raw signature of the individual eye. It shows a mind grappling with an aesthetic challenge. If the artist judges it a failure and crosses it out, then their vision hasn't been realized. But if it is beloved in its strangeness -- if the creator affirms it as a successful completion of their artistic intention, then it's a distinctive achievement that reflects the mind and hand of the moment.

Our planet -- amazingly, awesomely, wondrously, beautifully, stunningly (to any aliens who might happen upon it amid the dark blandness of space) -- hosts five-year-olds who draw bugs on the moon and six-year-olds who draw impossibly long dolphins, teenagers doodling on cars, friends collaborating on goofy songs. If no one else would have done it the same way, then the work reflects your distinctive aesthetic encounter with the world. It's a piece of you made visible. Especially (but not only) for those who care about you, it's your individual eye, voice, and values that ignite its meaning.

Bad art can fail in two ways: When it's so generic that the artist vanishes or when the artist disowns it as failing to capture their aesthetic vision. If it passes the sibling tests of distinctiveness and affirmation, it is valuable.

A world devoid of weird, wild, uneven, wonderful artistic flailing would be a lesser world. Let a thousand lopsided flowers bloom!

Thursday, May 08, 2025

Everything Is Sandcastles

Yesterday, Rivka Weinberg spoke at UCR from her forthcoming book, The Meaning of It All, on how time erodes meaning. As is often noted, in a thousand years it will (probably) be as though you had never lived. Everything you strived for will have crumbled to dust. Weinberg doesn't argue that this renders our efforts entirely meaningless -- but it does deprive them of a meaning they would have had, if they had endured. We ought to admit, she says, that this is disheartening, rather than brushing it off with a breezy recommendation to "live in the moment".

Weinberg carves out an exception to time's corrosive power: what she calls atelic goods (drawing on Kieran Setiya's work on the "midlife crisis"). Atelic goods are complete in the moment: strolling through the woods, enjoying a sunset, licking an ice cream cone. Contrast these with telic goods, which aim toward an endpoint: walking to the store, taking the perfect sunset photo, finishing the cone.

In her talk, Weinberg argued that time drained meaning from telic goods -- not entirely, but substantially -- while leaving atelic goods mostly untouched. Yet she cautioned against retreating wholly into atelic pleasures. A life composed only of strolls and sunsets would be vapid. Telic goods, like building a career and cultivating long-term relationships, are essential to a full life.

But during the discussion period, Weinberg introduced the idea of sandcastles as an interesting middle case. (I don't recall this in the talk itself, but it moved fast and I haven't seen a written version.) Building a sandcastle is telic: It unfolds over time and can be interrupted before completion. But it's also ephemeral. Nothing is lost if the sandcastle is gone tomorrow. It was never meant to last, any more than an ice cream cone.

Maybe everything is sandcastles.

Weinberg gave examples of paradigmatic telic goods whose meanings are ravaged by time: Martin Luther King's activism, Jonas Salk's work on the polio vaccine. In a thousand years -- or ten thousand, almost certainly a billion -- it will be as if King and Salk had never existed. But should King have felt disappointed that his activism wouldn't ripple through deep time? Maybe not. Maybe he should have regarded it as a sandcastle: designed for a particular time, not reduced in meaning because it didn't endure forever.

When I raised this during Q&A, I didn't fully grasp Weinberg's reply. The sandcastle example is hers, so I might not be doing her view full justice -- but let me run with the idea.

If we think of all of our projects as sandcastle building, then they aren't necessarily ravaged by time. Of course, many will be wiped away too early. The waves will sweep in before your castle is complete or while you were still relishing its beauty. A rude stranger might trample it. Maybe almost every truly important project loses its impact before we're ready. But that's not an inevitability built into the structure of telic meaning and the nature of time. It's a contingent fact about the fragile, unstable nature of our chosen projects in a risky world.

Maybe, by shaping our intentions differently, or thinking about our projects differently, we reduce their vulnerability. Suppose I build a sandcastle knowing there's a 50% chance it will be swept away before I finish -- and thus, perhaps, not intending to finish but intending only to get as far as I can. If the wave comes early, I can still be disappointed -- but the wave no longer robs the act of its intended meaning. I did, in fact, get as far as I could. And if I build right at the water's edge, knowing there's a 90% chance I won't complete the castle's final envisioned tower, then finishing is a delightful surprise: a bonus meaning, so to speak, beyond my expectation. If brevity is the default intention and expectation, then the collapse of my castles does not deprive my actions of their expected or intended meaning, while unlikely endurance adds meaning relative to base line.

Could we adopt the same attitude to our relationships and careers? The waves of life could sweep them away any day. A realistic sense of hazard might be folded into the intention itself. I intend to start a marriage and nurture it -- not with the expectation that we will still be happily together at eighty, but with the hope that we might. If we make it, wonderful! Like a sandcastle surviving high tide. If it happens, I'm surprised and delighted, and I'll do what I can for that. Similarly, I intend to begin a career and pursue it. If the wave comes, well, the plan was always only to build toward something that I knew from the start would sooner or later be taken by the surf.

There will still be grief and regret. Things rarely go as well as they might have gone. But if I fully embrace this mindset (let's be honest: I can't), my projects won't have less meaning than intended, even if the waves take them sooner than I would have liked.

[remember this meme from 2007?]

Friday, May 02, 2025

When Is a Theory Superficial?

by Jeremy Pober and Eric Schwitzgebel

Twelve years ago, one of us (ES) distinguished two kinds of theories: superficial and deep. Nearly any phenomenon can be approached in a superficial or deep manner. A superficial judge of human beauty treats it as skin deep. A superficial reading of Shakespeare takes characters at their word and focuses on the obvious aspects of each scene. A superficial housecleaning ignores the backsides and undersides of household items.

And of course one can have a superficial theory of belief. Phenomenal dispositionalism is intended to be such a theory. According to phenomenal dispositionalism, whether someone believes that P is a matter of whether they have certain behavioral, phenomenal (i.e., experiential), and cognitive dispositions, specifically, the dispositions that are "stereotypical" of a person who believes that P. Compare: To be an extravert just is to have the behavioral, phenomenal, and cognitive dispositions stereotypical of extraversion.

Superficial theories contrast with deep theories. Among theories of belief, the main contrast has been with the computationalist, representationalist functionalism made famous by Jerry Fodor (1987) and recently defended by Jake Quilty-Dunn and Eric Mandelbaum.

But what makes a theory of some property P superficial (or deep)? Twelve years ago, ES offered an answer: It depends on the theory's relationship to surface properties. Surface properties are observable features of a phenomenon that a theory of P is designed to explain (in a loose sense of "observable"[1]).

What relation to surface properties must a theory have to be superficial or deep? Back in 2013, ES said that "relative to a class of surface phenomena... a property is superficial if it identifies possession of the property simply with patterns in the surface phenomena" (2013, 77). And a theory is deep "relative to a class of surface phenomena... if it identifies possession of the property with some feature other than patterns in those same surface phenomena -- some feature that presumably explains or causes or underwrites those surface patterns" (ibid.).

This definition fits our toy examples above. A superficial judge of beauty relies on the most easily observable physical patterns, a superficial reading of Shakespeare focuses on surface-level dialogue, and a superficial house-cleaning treats looking clean as clean.

However, we have reason to be unsatisfied with this definition. [ES thanks JP for emphasizing this point in a series of discussions.]

Consider poison, a "causal concept" in David Armstrong (1968)'s sense: a concept defined by its causes and/or effects. Poison can be defined in terms of biologically harming a person when ingested (with refinements to differentiate poisoning from, say, drinking lava).[2] If I explain a death by saying that a person was poisoned, you can infer that the death was caused by ingestion rather than, say, hypothermia. That's informative -- but much less informative than saying that the person ingested cyanide, because chemical types like cyanide are defined structurally, allowing detailed explanations of how they interact with human physiology.

A theory of health that only has non-structural causal concepts like "poison" (or "medicine") would be a superficial theory of health. A deep theory, in contrast, invokes underlying mechanisms.

Yet, by ES's 2013 definition, a theory appealing to poison wouldn't count as superficial, because ingesting poison isn't merely related to death as two parts of a superficial pattern. Poison causes death.[3]

In a new draft, ES proposes a revised definition: a theory of property P is superficial if "whether an entity has property [P] is determined (that is, constituted or grounded...) entirely by superficial facts about that entity", where superficial facts are readily observed facts. For causal concepts, being the cause of is a constitutive relationship. This new definition thus accommodates causal superficialism, where poisons cause death and medicines cause recoveries, as inferable from readily observable relationships (such as randomized controlled trials), without appeal to deeper structural features.

That's a good thing! Otherwise, phenomenal dispositionalism only counts as a superficial theory of belief if dispositions don't cause their manifestations. Some philosophers of mind (e.g., Ryle 1949) indeed view dispositions non-causally. But others, like Armstrong (1968), propose a "realist" conception: Dispositions are type-identical to their causal bases. Fragility, for example, is identified with the microstructural features that cause fragile objects to break when struck.[4]

In his original articulation of phenomenal dispositionalism, ES expressed willingness to accept such a realist view (2002, 273n18). This version of dispositionalism can be considered equivalent to a version of functionalism (which holds that mental states can be defined in terms of their causal relations to inputs, outputs, and other mental states). Georges Rey (1997) calls this type of functionalism superficial functionalism, where all functional/causal roles are defined only in relation to behavior, thought, experience, and "similar" states (e.g., desire is similar to belief, so a superficial functionalist theory of belief can include relations to desires).[5]

Of course, deep theories also often employ causal explanations. So if causal superficial theories are possible, what distinguishes them from deep theories? The answer is that causal posits in superficial theories have minimal explanatory content, whereas deep theories have excess explanatory content.[6] Posits with minimal explanatory content explain all that they were posited to explain and no more, whereas posits with excess content make further falsifiable predictions.

Consider the difference between a geneticist working right after Gregor Mendel published his work on heritability, and one working after Franklin, Watson, and Crick had mapped the structure of DNA and demonstrated how it instantiated genetic material. Mendel's theory, which gives us the posits of trait, gene, allele, and dominant/recessive, is a powerful theory (much like belief/desire psychology), but it doesn't explain how genes and alleles have the properties that they do. An allele is just the genetic material for a variant in phenotype, e.g., blood type A versus B or O. But in the initial Mendelian framework, it was defined as "whatever is responsible for variance in (e.g.) blood type".

[illustration of Mendel's superficial causal theory; image source]

Contrast with someone working in the latter half of the 20th century. They know that genetic information is realized in DNA (& RNA), which via its repeating base patterns and double helix structure, acts as a base code for the information that constitutes alleles. In other words, they know how genes carry genetic information.[7]

Superficial theories needn't be acausal, but if they posit causal relationships, those relationships must exist among the readily observable features, without invoking hidden structures or mechanisms that yield additional explanatory content. In contrast, the later 20th century theory makes many more falsifiable predictions -- those that follow from the structure of DNA -- and thus has excess explanatory content.

--------------------------------------------

[1] This might not match the sense of "observable" sometimes used in philosophy of science. Dennett (1994) defines observable from his perspective of "urbane verificationism" and, for a theory of attitudes, takes the same list of surface properties to be observable as ES: behavior, thought, and experience.

[2] More precisely, poison is always a two-place predicate, poison-for-S where S is some group of organisms such as a species. When no such group is specified, we can treat instances of poison as poison-for-humans. We are ignoring contact poisons and other complications.

[3] Thus the distinction between superficial and deep theories is not a distinction about noncausal versus causal explanations. Consequently, the superficial/deep distinction as applied to the attitudes does not end up reducing to Devin Curry's distinction between beliefs as properties of persons and beliefs as "cogs" of cognitive science (Curry 2021).

[4] The standard way of defining a causal basis is in terms of physical properties, such as microstructural properties defining "fragility". However this is not a strict requirement. One can posit a mental kind (as in Quilty-Dunn and Mandelbaum 2018 where representations are the causal bases of dispositions constitutive of belief stereotypes) or even a higher-order kind (as in Prior, Pargetter, and Jackson 1982).

[5] Rey (1994; 1997) invokes this term in a debate with Dan Dennett that parallels the debate between ES and Quilty-Dunn and Mandelbaum. While the overall debate turns on different issues, the definition of superficialist theories of belief lines up. Examples of this sort of functionalism plausibly include David Armstrong (1968), the David Lewis of "An Argument for the Identity Theory" (1966) but maybe not the David Lewis of "Mad Pain and Martin Pain" (1980), and Adam Pautz 2021).

[6] Term adopted from Lakatos's (1968) notion of "excess" explanatory content.

[7] The DNA example also lets us talk about different levels or degrees of depth. The late 20th century theory of a gene is a deep one, but so is a theory mid-way between that and Mendel's. In the first years of the 20th century scientists identified chromosomes as the realizer of genes, but did not know that chromosomes were made of DNA (they thought they were proteins). This theory too is deep -- there are excess predictions made by the assignment of genetic material to chromosomes -- but not as deep as later views, because not nearly as many excess predictions were made. We can tentatively call such a theory formally deep, whereas a theory that more fully explains how the posit in question (genes, beliefs) has the properties that it does is substantively deep.

Monday, April 28, 2025

People with Unusual, Minority, Culturally Atypical, or Historically Underrepresented Experiences and Worldviews Should be Overrepresented in Philosophy, Rather than Underrepresented

Saturday's post finding that only 16% of Authors in Elite Philosophy Journals Are Women brought out the misogynist bros on Twitter, but also some remarks from well-meaning people along the lines of "maybe women (ethnic minorities, etc.) just aren't that interested in philosophy".

I expressed my rejection of this perspective in a post for the Blog of the APA in 2020. Perhaps it warrants reposting:

There is nothing about philosophy, as a type of inquiry into fundamental facts about our world, that should make it more attractive to White men than to Black women. Philosophical reflection is an essential part of the human condition, of interest to people of all cultures, races, classes, and social groups. If our discipline and society were in a healthy, egalitarian condition, we should, in fact, expect people from minority groups to be overrepresented in academic philosophy, rather than underrepresented. Academic philosophy should celebrate diversity of opinion, encourage challenges to orthodoxy, and reward fresh perspectives that come from inhabiting cultures and having life experiences different from the mainstream. We should be eager, not reluctant, to hear from a wide range of voices. We should especially welcome, rather than create an inhospitable or cool environment for, people with unusual or minority or culturally atypical or historically underrepresented experiences and worldviews. The productive engine of philosophy depends on novelty and difference.

Saturday, April 26, 2025

16% of Authors in Elite Philosophy Journals Are Women

In some ways, the gender situation has been improving in philosophy. Women now constitute about 40% of graduating majors in philosophy in the U.S., up from about 32% in the 1980s-2010s. There is, I think, substantially more awareness of gender issues and the desirability of gender diversity than there was fifteen years ago. And yet, at the highest levels of impact and prestige, philosophy remains overwhelmingly male.

One measure of this is authorship in elite philosophy journals. For this post, I examined the past two years' tables of contents of Philosophical Review, Mind, Journal of Philosophy, and Nous -- widely considered to be the most elite general philosophy journals in mainstream Anglophone philosophy. (Some rankings put Philosophy & Phenomenological Research alongside these four.) I estimated the gender of each author of each article, commentary, or response (excluding book reviews and editorial prefaces), based gender-typical name, gender-typical photo, pronoun use, and/or personal knowledge, generally using at least two criteria. Of 291 included authors, there were only two who were either non-binary or defied classification -- in both cases, based on an expressed preference for they/them pronouns. There's always a risk of mistake, but for the most part I expect that my gender classifications accurately reflect how the authors identify and are perceived, with at most a 1-2% error rate.

Overall, I found:

Authorship Rates In Four
Elite Philosophy Journals
(Past Two Years):
Women: 46 authorships
Men: 243 authorships
Nonbinary/unclassified: 2 authorships

Percent women: 16%

Women now earn about 30% of PhDs in the U.S. and constitute almost 30% of American Philosophical Association members who report their gender -- so authorship in these journals is substantially more skewed than faculty in the United States. Of course, many authors are neither located nor received their PhD in the U.S., so these percentages aren't strictly comparable. However, PhD and faculty percentages are broadly similar in the U.K. and, impressionistically, in other high-income Anglophone countries. (I'm less sure outside the English-speaking world, but researchers in non-Anglophone countries author only a small percentage of articles in elite Anglophone journals; see here for an analysis of the insularity of Anglophone philosophy.)

Now, one possible explanation of this skew is that women are more likely to specialize in ethics than in other areas of philosophy (see these ten-year-old data), and these four journals publish relatively little ethics. To explore this possibility, I did two things:

First, I coded each article in the big four journals as either "ethics" or "non-ethics", based on the title or the abstract if the title was ambiguous. I included political philosophy, social philosophy, metaethics, and history of ethics as ethics. (Of course, there were some gray-area cases and judgment calls.)

Second, I added two journals to my list: Ethics and Philosophy & Public Affairs, generally considered the two most elite ethics journals (though after the editorial turmoil at PPA last year, it's not clear whether this will remain true of PPA).

In the big four, I classifed 60/291 (21%) authorships as ethics. (Perhaps this is a slight underrepresentation of ethics in these journals, relative to the proportion of research faculty in the Anglophone world who specialize in ethics?) In these journals, I found that indeed women have a higher percentage of ethics authorships than non-ethics authorships:

Authorship by Gender
in Big 4 Philosophy Journals
Ethics vs. Non-Ethics
Ethics: 17/60 (28%)
Non-ethics: 29/231 (13%)
[Fisher's exact 2-tail, p = .005]

If we juice up the sample size by adding in Ethics and PPA, we get the following:

Authorship by Gender
in 6 Elite Philosophy Journals
Ethics vs. Non-Ethics
Ethics: 40/142 (29%)
Non-ethics: 29/231 (13%)
[Fisher's exact 2-tail, p < .001]
[corrected Apr 27]

Strikingly, women appear to be more than twice as likely to author ethics articles than non-ethics articles.

Ten years ago, I did some similar analyses, comparing ethics vs. non-ethics authorships in two-year bins every 20 years from 1955 to 2015. In those samples, too, I found women to author only a small percentage of articles in elite journals overall (13% in 2014-2015) and to be more likely to author in ethics, so the trends are historically consistent.

ETA April 28: To be clear, all four journals normally use double-anonymous refereeing.

Tuesday, April 15, 2025

Harmonizing with the Dao: Sketch of an Evaluative Framework

Increasingly, I find myself drawn to an ethics of harmonizing with the Dao. Invoking "the Dao" might sound mystical, non-Western, ancient, religious -- alien to mainstream secular 21st-century Anglophone metaphysics and ethics. But I don't think it needs to be. It just needs some clarification and secularization. As a first approximation, think of harmonizing with the Dao as akin to harmonizing with nature. Then broaden "nature" to include human patterns as well as non-human, and you're close to the ideal. Maybe we could equally call it an ethics of "harmonizing with the world" or simply an "ethics of harmony". But explicit reference to "the Dao" helps locate the idea's origins and its Daoist flavor.

[image source]

The Metaphysics of Dao

In the intended sense -- inspired by ancient Daoism and Confucianism, but adapted for a 21st century Anglophone context -- the "Dao" the world as a whole. However, it is not the world conceptualized as a collection of objects, but rather as a system of processes and patterns. The Dao is the spinning of Earth; the rise and fall of mountains and species; the rise and fall of cities and nations; human birth, childhood, adulthood, and death; people discovering and losing love; the way strangers greet each other; the growth of your fingernails; the falling of a leaf.

The Axiology of Dao

Some strands in the Daoist tradition hold that all manifestations of the Dao are equally good. But the more dominant strand holds that things can go better or worse. And certainly the Confucians, who also sought harmony with the Dao, held that things could go better or worse.

What constitutes things going better? I favor value pluralism: More than one type of thing has fundamental value. Happiness is valuable, of course. But so also is knowledge (even when it doesn't lead to happiness), beauty, human relationships, and even (I'd argue) the existence of stones.

One way to clarify our thoughts about value is the "distant planet thought experiment". Consider a planet on the far side of the galaxy, forever blocked by the galactic core, with which we will never interact. What would you hope for, for the sake of this planet? Most of us would not hope for a sterile rock, but rather for a planet rich with life -- and not just microbes, not just jungles of plants and animals, but a diverse range of entities capable of forming societies, capable of love and cooperation, art and science, engineering and sports, entities capable of generations-long endeavors and of philosophical wonder as they gaze up at the stars or down through their microscopes.

We might say that a planet, or a region of spacetime, is flourishing when it instantiates, or is on the path toward instantiating, such excellent patterns.

Conceptual Frameworks

Philosophers typically ask two questions when I propose harmonizing with the Dao as an ethical ideal. First, how does it differ from the more familiar (to them) ethics of consequentialism, deontology, and virtue ethics? Second, what specifically does it recommend?

To the first question: Unlike consequentialism, there is no single good or bundle of goods that you should maximize; unlike deontology, there is no one rule or set of rules you should follow (unless we interpret "harmonize with the Dao" as the rule); unlike virtue ethics, there is no canonical set of virtues the cultivation and instantiation of which is the foremost imperative. Instead, the animating idea is to flow harmoniously along with the Dao and participate in, rather than strain against, its flourishing.

That's vague, of course. What specifically should you do, if your aim is to harmonize with the Dao?

I have some thoughts. But first, notice that consequentialism as a general ethical perspective is compatible with a wide range of possible concrete actions, depending on how it is developed and on the details of your situation. So also can deontological and virtue ethical perspectives be made compatible with a wide range of specific actions. What these broad ethical perspectives offer, primarily, is not specific advice but rather conceptual frameworks for ethical thinking -- in terms of consequences and expectations, or in terms of rules of different types, or in terms of a range of virtues and vices. So let's consider what broad concepts an ethics of harmony might employ, with the specific advice as an illustration of how those concepts might work.

Harmony and Disharmony, Illustrated in a University Context

Harmonizing with the flourishing patterns of the Dao involves participating in those patterns, enriching them, and enabling others to participate in and enrich those patterns. Suppose you think that one of the great processes worth preserving in the world is university education. You can participate in that process by being a good teacher, by being an administrator who helps things run smoothly, by being a custodian who helps keep the grounds clean, and so on. You can enrich it by helping to make it even more awesome than it already is -- for example by being an unusually inspiring teacher or by being not just an ordinary custodian but one who adds a bright smile to a student's day. You can enable others to participate in and enrich those patterns by helping hire a terrific teacher or custodian or by providing the type of environment that brings out the best in others.

We can see the university as a place where many lives converge either briefly or for decades. This convergence is valuable not just for what it yields but in itself. The processes constituting university life also participate in and enable other valuable processes, whether those are individual human lives, or other institutions that partly overlap with or depend on the university, or projects and events that happen within the university, or simply the natural and architectural beauty of an appealing campus.

Compare this way of thinking about the ethics of participation in a university with consequentialism (emphasizing the various goods that university education is expected to deliver), deontology (emphasizing the rules one ought to follow within a university), or virtue ethics (emphasizing the manifestation and cultivation of virtues such as curiosity and compassion). While I don't object to any of those ways of thinking about the ethics of university life, the Daoist perspective is, I hope, a valuable alternative lens.

Disharmony could involve cutting short, or attempting to cut short, an axiologically valuable pattern (rather than letting it come to its natural end), working against that pattern, or preventing others from harmonizing. Continuing the university example, cutting funding for valuable research, firing an excellent teacher, disrupting classes, littering, or flying a noisy helicopter overhead might all count as disharmonious. Other examples can include preventing access or undermining the conditions that allow students, faculty, or staff to flourish in their roles.

Comparisons with Music

You are not the melody-maker. "Harmony" suggests a contrast with "melody". You are not the melody-maker, the director, the first violinist, the lead singer, the lead guitarist -- at least not usually. Your typical role is to support an already-happening good thing.

Diversity and pluralism. There is more than one way to harmonize. A piece is richer when not everyone plays the same note.

Improvisation. Zhuangzi emphasized flowing along with things in an improvisational manner, rather than adhering to fixed rules. Often, the best music has improvisational elements, or at least room to allow one's mood of the moment to influence how one plays the notes. Spontaneous improvisation manifests harmony within the improviser, among the various unarticulated inclinations that arise without explicit cognitive control.

Aesthetic value. The boundary between aesthetic and ethical value (and other types of value) might not be as sharp as philosophers often suppose.

Conflicts of Harmony

A tree is a wondrous thing. Cutting it down cuts short an axiologically valuable pattern, and is normally out of harmony with the tree, the forest, and the lives it supports. But if the tree becomes lumber for a beautiful home, then that act belongs to another axiologically valuable pattern and is in harmony with the Dao of human cultural life.

Your wife wants one thing from you; your mother, another. Harmony with one might involve dissonance with the other. You might consider how sharp the dissonance is in each case. You might consider what patterns are being enacted in these relationships, and which are the more valuable patterns to sustain.

Like any ethical approach, harmonizing with the Dao must allow for conflicts and tradeoffs. The world makes competing demands and offers incompatible opportunities. There needn't be a formula for how to deal with all such cases. In some cases, creative thinking might allow one to support or integrate multiple patterns or integrate them into a whole: Removing a tree is sometimes overall good for a forest; occasional tension with a spouse may sustain a healthier relationship than shallow peace.

Sometimes the conflict is the harmony. Chess masters seek incompatible goals as part of the larger pattern of a competition. Predators consume prey in a healthy ecosystem. Law and politics require adversaries in a (hopefully) well-functioning social system.

My main overall thought is that we can build a fruitful framework for ethical thinking by taking the root project to be one of harmonizing with the awesome patterns and processes of the world.

Wednesday, April 09, 2025

New Paper in Draft: Superficialism about Belief, and How We Will Decide That Robots Believe

Comments welcome, as always, by email, as comments on this blog post, or through social media. This is intended as a submission to a special issue of Semiotic Studies on Krzysztof Poslajko's recent book Unreal Beliefs.

Superficialism about property X treats the possession, or not, of property X as determined entirely by superficial as opposed to deep facts. Belief should be understood superficially, as determined entirely by facts about actual and potential behavior, conscious experience, and transitional cognitive states ultimately understood in terms of actual and potential behavior and conscious experience. On both intuitive and pragmatic grounds, superficialism about belief is superior to accounts of belief in terms of deep cognitive or neural architecture, and it is not systematically inferior on scientific grounds. Behaviorist and interpretativist superficialism suggests that robots and Large Language Models already do, or will soon, believe. If consciousness is also essential to belief, the issue might soon become unclear for some of the most advanced systems. However, it will at least be practical to attribute some such systems belief* -- belief shorn of commitment to any conscious aspect -- and it will be forgivable if people forget to pronounce the asterisk. Krzysztof Poslajko should welcome this manner of thinking, though it needn't be as "antirealist" as Poslajko suggests.

Draft available here

Tuesday, April 08, 2025

Further Reflections on the Most-Cited Works in the Stanford Encyclopedia of Philosophy: Underranked Works and Concentration Percentage

A couple of weeks ago, I published a list of the 253 most-cited works since 1900 in the Stanford Encyclopedia of Philosophy. (The SEP had 1778 main-page entries as of my scrape last summer, and many of those entries have long reference lists.) Citation in the SEP is plausibly a better measure of impact in mainstream Anglophone philosophy than other bibliometric measures like Google Scholar and SCOPUS, which include citations by non-philosophical sources (which can dominate citations within philosophy, since philosophy is overall a relatively low-citation field) and which mix citation by sociologically elite venues with citation by less elite venues (and those citation patterns can be very different).

I think informed readers will tend to agree that the works near the top of the list (Rawls' Theory of Justice, Kripke's Naming and Necessity, etc.) are indeed among the most influential works in the mainstream Anglophone tradition -- more influential in mainstream Anglophone philosophy than, say, Foucault's Discipline and Punish or Popper's Logic of Scientific Discovery, despite Foucault's and Popper's higher citation overall across all disciplines and sources.

(What do I mean by "mainstream Anglophone philosophy"? I mean philosophy as practiced by professors in departments highly ranked in the Philosophical Gourmet Report, as published in journals that are highly ranked in Brian Leiter's polls (e.g., here), and -- though this would be circular for present purposes -- as recognized in the Stanford Encyclopedia of Philosophy. Even readers who dislike the philosophy of this tradition, or who see it as troublingly narrow, can I think recognize the sociological phenomenon of influence in these related ecologies, reasonably called "mainstream" in Anglophone academia.)

Underranked Works

Although SEP citation rates are, I think, a better measure of impact in mainstream Anglophone philosophy than any other existing bibliometric measure, that doesn't mean they are perfect. Works with a huge impact on a subdiscipline, or on a particular topic, will plausibly be underranked compared to works with substantial impact across a range of areas. The SEP will have only a limited number of entries for each subdiscipline or topic, and no matter how important the work is to that subdiscipline or topic, it can appear only once in each entry's bibliography.

This explains, I think, the relatively weak showings of some of the best-known articles in the field. For example:

  • 119th (tied), 21 citations: Gettier, Edmund L., 1963, Is Justified True Belief Knowledge?
  • 192nd (tied), 17 citations: Anscombe, G.E.M., 1958, Modern Moral Philosophy
  • unranked, 14 citations: Searle, John R, 1980, Minds, Brains, and Programs
  • unranked, 12 citations: Singer, Peter, 1972, Famine, Affluence, and Morality
  • unranked, 9 citations: Thomson, Judith Jarvis, 1971, A Defense of Abortion
  • This isn't intended as any kind of exhaustive or representative list of underranked works -- just a few examples that struck me as conspicuously underranked relative to their influence. Gettier's 1963 article is possibly the most influential work of 20th century epistemology (in mainstream Anglophone circles). Anscombe's 1958 article is often seen as a landmark in the resurgence of virtue ethics. Searle's 1980 "Chinese room" argument is perhaps the most influential work on philosophy of computation and artificial intelligence after Turing. Likewise, Singer's 1972 article on charitable donation (with its famous example of rescuing a drowning child in a nearby pond at the expense of your clothes) and Thomson's defense of abortion (with its violinist example) are known to virtually all mainstream Anglophone philosophers.

    Works might also be underranked if the SEP has relatively few entries in their field or subfield. For example, I'd venture that epistemology has relatively few entries relative to its overall influence in mainstream Anglophone philosophy. And although feminism has probably been somewhat more influential in mainstream Anglophone philosophy than philosophy of race, SEP features many more entries on the former than the latter, possibly explaining why some important feminist works appear on the list (e.g., Butler's Gender Trouble at rank #61), while philosophy of race is poorly represented.

    Influential authors and ideas might also fail to appear on this list, if the influence is spread among several works. For example, here are the ten most-cited authors who have no individual works represented among the top 253:

    John Hawthorne (97 total citations)
    Jonathan Bennett (83)
    William Alston (77)
    Judith Jarvis Thomson (72)
    William G. Lycan (71)
    Nicholas Rescher (71)
    Peter Singer (71)
    Ernest Sosa (69)
    Jeremy Waldron (68)
    Joel Feinberg (67)
    Amartya Sen (67)

    All of the above are among the top 86 most-cited authors born since 1900. So of course no negative inference about the importance of any individual author is justified by the absence that author's individual works from the works list.

    What Percentage of an Author's Citations Are to Their Most-Cited Work?

    By comparing my most-cited authors list with my most-cited works list, we can get a rough measure of how much an author's impact is concentrated in a single work vs. spread across multiple works. (Note that the lists are not quite comparable, since the authors list includes only authors born 1900 or later while the works list includes all works published 1900 or later, including works by authors born before 1900.)

    Consider, for example, Thomas Kuhn. His Structure of Scientific Revolutions was one of the most influential works of philosophy of the second half of the 20th century. Fittingly, it appears 9th on my list of most influential works. But Kuhn himself appears relatively low on the list of most influential authors: 63rd. Looking at the raw numbers, we can see that 58 entries cite Structure and 71 entries cite any work by Kuhn. Thus, 82% of the Kuhn-citing entries cite Structure.

    Contrast this with, say, David Lewis, who is the #1 most-cited contemporary author overall (with 307 entries citing his work) and whose most-cited work, On The Plurality of Worlds, ranks #6 (70 citing entries). For Lewis, 23% (70/307) of the entries that cite him cite his most-cited work.

    I can't seem to think of a good name for this number, so I'll have to settle with a bad name: the concentration percentage. Here are the concentration percentages of the ten most-cited contemporary authors in the SEP:

    1. Lewis, David K.: 23% (70/307)
    2. Quine, Willard van Orman: 32% (69/213)
    3. Putnam, Hilary: 24% (45/190)
    4. Rawls, John: 76% (127/168)
    5. Kripke, Saul A.: 58% (92/159)
    6. Williamson, Timothy: 32% (48/152)
    7. Davidson, Donald: 21% (31/151)
    8. Williams, Bernard: 22% (32/146)
    9. Nussbaum, Martha C.: 19% (26/140)
    10. Nagel, Thomas: 24% (33/137)

    Thus, we can see two clusters: A couple of authors had most of their citation impact through a single work: Rawls (via A Theory of Justice) and Kripke (via Naming and Necessity). The remaining authors had about a third to a fifth of their citation impact through a single work.

    Among the top hundred authors, the ten most concentrated are:

    Kuhn, Thomas S. (82%: Structure of Scientific Revolutions)
    Rawls, John (76%: A Theory of Justice)
    Parfit, Derek (71%: Reasons and Persons)
    Scanlon, Thomas M. (66%: What We Owe to Each Other)
    Kaplan, David (65%: Demonstratives)
    Ryle, Gilbert (61%: The Concept of Mind)
    Kripke, Saul A. (58%: Naming and Necessity)
    Ayer, Alfred J. (54%: Language, Truth, and Logic)
    Nozick, Robert (53%: Anarchy, State, and Utopia)
    Evans, Gareth (53%: Varieties of Reference)

    I confess to being surprised that some of these percentages aren't even higher. For example, I'd have guessed Ryle's impact was more than 61% concentrated on The Concept of Mind.

    The ten least concentrated are:

    Bennett, Jonathan (16%)
    Pettit, Philip (16%)
    Harman, Gilbert H. (16%)
    Hawthorne, John (15%)
    Thomson, Judith Jarvis (15%)
    Lowe, E. J. (15%)
    Waldron, Jeremy (15%)
    Feinberg, Joel (13%)
    Yablo, Stephen (13%)
    Rescher, Nicholas (6%)

    I'll venture a prediction. According to the phenomenon I've labeled "The Winnowing of Greats", the greater your distance from a group that varies in eminence, the greater the difference seems between the most eminent members of that group and the less eminent members. (This is to some extent because you have zero knowledge of most members below a certain level of eminence and to some extent because you overrely on second-hand summaries that highlight a few of the most eminent examples.) If this winnowing phenomenon applies to works as well as to authors, then as time creates distance from our era, all but the most influential works will largely be forgotten -- which will disproportionately favor highly concentrated authors in the historical memory.

    [click image to enlarge and clarify]

    Monday, March 31, 2025

    The Gender and Race/Ethnicity of Authors of the Most-Cited Works of Mainstream Anglophone Philosophy

    As is well-known, mainstream Anglophone philosophy has tended to be overwhelmingly non-Hispanic White -- though there's some evidence of recent changes in the student population which might start to trickle into the professoriate. Generally, the higher the level of prestige, the more skewed the ratios. In my 2024 analysis of the 376 most-cited authors in the Stanford Encyclopedia of Philosophy, I found that women or nonbinary authors constituted 12% of the list and Hispanic or non-White authors constituted 3%.

    How well represented are these groups among authors of the 253 most-cited works in the Stanford Encyclopedia? Here, the skew is even more extreme. Of the 265 included work-author combinations (almost all of the included works are solo-authored), I count 24 works (9%) by women, 2 (1%) non-binary authored works (both by Judith Butler), one (0.4%) by a Hispanic/Latino person (Linda Martín Alcoff), one (0.4%) by an Asian (Jaegwon Kim), and none by any authors that are known by me to identify or be perceived as Black or African American, American Indian / Alaska Native, or Native Hawaiian or Other Pacific Islander (using the race/ethnicity categories of the US Census). Corrections welcome if I'm misclassified anyone!

    Here it is as a pie chart. If you squint, you might be able to see the lines for the Hispanic or non-White groups.

    [pie chart comparing 236 non-Hispanic White men with 25 non-Hispanic White women or nonbinary, 1 Hispanic or non-White man, and 1 Hispanic or non-White woman or nonbinary]

    Friday, March 28, 2025

    The 253 Most Cited Works in the Stanford Encyclopedia of Philosophy

    Last summer, Jordan Jackson and I scraped the bibliographies of all the main-page entries of the Stanford Encyclopedia of Philosophy, the leading source of review articles in mainstream Anglophone philosophy. Since 2010, I've been analyzing citation patterns in the SEP. Generally, I find SEP citation rates to more plausibly measure influence in mainstream Anglophone philosophy than other bibliometric measures, such those derived from Web of Science or Google Scholar. (For example, by the SEP method the top five most cited philosophers born 1900 or later are David Lewis, W.V.O. Quine, Hilary Putnam, John Rawls, and Saul Kripke.)

    Most of my SEP-based analyses aggregate by author, but it's also revealing to aggregate by work cited, for a couple of reasons. First, my author-based analyses probably overstate the influence of authors with moderate impact across many fields compared to authors with transformative impact in just one or a few fields. Second, tracking influential works is an interesting project in its own right.

    Before proceeding to the list, notes and caveats.

    (1.) Each work counts once per main-page bibliographic entry in the SEP. Thus, a work with a total of 33 is cited in 33 different main page entries. Subpage entries are not included.

    (2.) What counts as the "same work"? The distinction admits vague and contentious cases, and implementing it mechanically raises further problems. Here's what I did: To count as the same work, the work had to begin with exactly the same title words (excluding punctuation marks, "a", "an", or "the"). Later editions were counted as the same work as earlier editions (including a few cases of "such-and-such revisited" or the like) and articles republished in collections were counted as the same work if the particular article rather than the collection as a whole was cited. Also, works that appeared first as articles then later were expanded into books with the same or similar title were counted as the same work. Multi-volume works counted as the same work, unless the title was "Complete Works" or similar.

    (3.) I only included works with publication dates from 1900-2024. Older works tend not to be cited in a consistent, easily scraped format, so results for those works are inaccurate and potentially misleading.

    (4.) I did not attempt to match works cited both in English and in their original language. Some translated works make the list simply in virtue of citation under their English-language title; and some untranslated works make the list simply in virtue of citation under their original-language title. Obviously, this systematically undercounts works that are cited under both their English and original-language titles.

    (4.) Citations in the role of editor are not included.

    (5.) Please excuse the haphazard cut-and-paste formatting. Dates are sometimes first appearance, sometimes later appearance or edition or translation.

    (6.) Technical details: The matching algorithm looked for matches in the first four letters of the author's name and the first five letters of the first text appearing after numbers, punctuation marks, "the", "an", or "a", which for standardly formatted entries is the title. I then alphabetically sorted and hand-checked all bibliographic lines with at least 15 exact matches of both of the two parameters. This took several hours and was probably imperfect, but was not as difficult as it might seem. Note also: The scrape was conducted last summer, so recent entries and recent updates won't figure into the totals.

    (7.) Corrections welcome, as long as they are consistent with the principles above and don't constitute a general revision, unsystematically applied on one author's behalf, of the method described in the technical details.

    (8.) I'll follow up, probably in the next week or two, with some reflections on the list.

    (9.) You can see the 2020 results here.

    ETA Apr 9: Two follow-up posts:

    The Gender and Race/Ethnicity of Authors of the Most-Cited Works of Mainstream Anglophone Philosophy (Mar 31)

    Further Reflections on the Most-Cited Works in the Stanford Encyclopedia of Philosophy: Underranked Works and Concentration Percentage (Apr 8)

    [cover of Rawls's A Theory of Justice]

    1. (127 citing entries) Rawls, John, 1971, A Theory of Justice
    2. (92) Kripke, Saul, 1972, Naming and Necessity
    3. (79) Parfit, Derek, 1984, Reasons and Persons
    4. (72) Nozick, Robert, 1974, Anarchy, State, and Utopia
    5. (71) Wittgenstein, Ludwig, 1953 [2001], Philosophical Investigations
    6. (70) Lewis, David, 1986, On the Plurality of Worlds
    7. (69) Quine, W. V. O., 1960. Word and Object
    8. (67) Scanlon, T. M., 1998, What We Owe to Each Other
    9. (58) Kuhn, Thomas S., 1962, The Structure of Scientific Revolutions
    10. (57) Rawls, John, 1996, Political Liberalism
    11. (54) Chalmers, David J., 1996, The Conscious Mind
    12. (49) Russell, Betrand, 1903, The Principles of Mathematics
    13. (48) Lewis, David, 1973. Counterfactuals
    13. (48) Sidgwick, Henry, 1907, The Methods of Ethics
    13. (48) Williamson, Timothy, 2000, Knowledge and its Limits
    16. (47) Kaplan, David, 1977, Demonstratives
    16. (47) Moore, G.E., 1903, Principia Ethica
    18. (45) Putnam, Hilary, 1975, The Meaning of "Meaning"
    18. (45) Quine, W.V.O., 1951, Two Dogmas of Empiricism
    20. (43) Jackson, Frank, 1998, From Metaphysics to Ethics
    21. (41) Ayer, A.J., 1936, Language, Truth and Logic
    22. (39) Carnap, Rudolf, 1956, Meaning and necessity
    22. (39) Ross, W.D., 1931, The Right and the Good
    22. (39) Ryle, Gilbert, 1949. The Concept of Mind
    22. (39) van Fraassen, Bas C., 1980, The Scientific Image
    26. (37) Dummett, Michael, 1973, Frege: Philosophy of Language
    26. (37) Evans, Gareth, 1982, The Varieties of Reference
    26. (37) Mackie, J. L., 1977, Ethics: Inventing Right and Wrong
    26. (37) Russell, Bertrand, 1905, On Denoting
    26. (37) Whitehead, Alfred North and Bertrand Russell, 1910-1913, Principia Mathematica
    31. (36) Goodman, Nelson, 1954. Fact, Fiction and Forecast
    32. (35) Popper, Karl R., 1959, The Logic of Scientific Discovery
    32. (35) Wittgenstein, L., 1922, Tractatus Logico-Philosophicus
    34. (34) Fodor, Jerry A., 1987, Psychosemantics
    34. (34) Korsgaard, Christine M., 1996, Sources of Normativity
    34. (34) Lewis, David K., 1969, Convention: A Philosophical Study
    34. (34) Nozick, Robert, 1981, Philosophical Explanations
    34. (34) Raz, Joseph, 1986, The Morality of Freedom
    34. (34) Woodward, James, 2003, Making Things Happen
    40. (33) Gauthier, David, 1986, Morals by Agreement
    40. (33) McDowell, John, 1994, Mind and World
    40. (33) Nagel, Thomas, 1986, The View from Nowhere
    40. (33) Russell, Bertrand, 1912, The Problems of Philosophy
    44. (32) Parfit, Derek, 2017, On What Matters
    44. (32) Williams, Bernard, 1985, Ethics and the Limits of Philosophy
    46. (31) Davidson, Donald, 1980, Essays on Actions and Events
    46. (31) Gibbard, Allan, 1990, Wise Choices, Apt Feelings
    46. (31) Strawson, P.F., 1959. Individuals
    49. (29) Finnis, John. M, 1980, Natural Law and Natural Rights
    49. (29) Fricker, Miranda, 2007, Epistemic Injustice
    49. (29) Longino, Helen E., 1990, Science as Social Knowledge
    52. (28) Anscombe, G. E. M., 1957, Intention
    52. (28) Brandom, Robert B., 1994, Making It Explicit
    52. (28) Jackson, Frank, 1982, Epiphenomenal Qualia
    52. (28) Pearl, Judea, 2000, Causality: Models, Reasoning, and Inference
    52. (28) Plantinga, Alvin, 1974, The Nature of Necessity
    52. (28) Quine, W. V. O., 1948, On What There Is
    52. (28) Rawls, John, 2001, Justice as Fairness: A Restatement
    52. (28) Sellars, Wilfrid, 1956, Empiricism and the philosophy of mind
    52. (28) van Inwagen, Peter, 1990, Material Beings
    61. (27) Armstrong, David M., 1997, A World of States of Affairs
    61. (27) Butler, Judith, 1990, Gender Trouble
    61. (27) Dennett, Daniel C., 1991, Consciousness Explained
    61. (27) Dretske, Fred I., 1981, Knowledge and the Flow of Information
    61. (27) Hare, R.M., 1952, The Language of Morals
    61. (27) Lewis, David, 1983, New Work for a Theory of Universals
    61. (27) Millikan, Ruth Garrett, 1984, Language, Thought, and Other Biological Categories
    61. (27) Nagel, Thomas, 1974, What is It Like to Be a Bat?
    61. (27) Smith, Michael, 1994, The Moral Problem
    61. (27) Young, Iris Marion, 1990, Justice and the Politics of Difference
    71. (26) Carnap, Rudolf, 1950, Logical Foundations of Probability
    71. (26) Frankfurt, Harry, 1971, Freedom of the Will and the Concept of a Person
    71. (26) Grice, Herbert Paul, 1989, Studies in the Way of Words
    71. (26) Jeffrey, Richard C., 1965 [1983], The Logic of Decision
    71. (26) Kripke, Saul, 1982, Wittgenstein on Rules and Private Language
    71. (26) Nussbaum, Martha C., 2006, Frontiers of Justice
    71. (26) Searle, John R., 1983, Intentionality
    78. (25) Anderson, Elizabeth S., 1999, What Is the Point of Equality?
    78. (25) Armstrong, David M., 1968, A Materialist Theory of Mind
    78. (25) Dworkin, Ronald, 1977, Taking Rights Seriously
    78. (25) Fodor, Jerry A., 1975, The Language of Thought
    78. (25) Hart, H.L.A., 1961, The Concept of Law
    78. (25) Hempel, Carl G., 1965, Aspects of Scientific Explanation
    78. (25) Kneale, William and Martha Kneale, 1962. The Development of Logic
    78. (25) MacIntyre, Alasdair, 1984. After Virtue
    78. (25) Nagel, Ernest, 1961, The Structure of Science
    78. (25) Ramsey, Frank P., 1931, Truth and Probability
    78. (25) Rawls, John, 1999, The Law of Peoples
    78. (25) Russell, Bertrand, 1918/1919, The Philosophy of Logical Atomism
    78. (25) Stalnaker, Robert, 1984, Inquiry
    78. (25) Williamson, Timothy, 2007, The Philosophy of Philosophy
    92. (24) Blackburn, Simon, 1998, Ruling Passions
    92. (24) Brink, David O., 1989. Moral Realism and the Foundations of Ethics
    92. (24) Burge, Tyler, 1979, Individualism and the Mental
    92. (24) Dupré, John, 1993, The Disorder of Things
    92. (24) Fine, Kit, 1994, Essence and Modality
    92. (24) Hare, R.M., 1981, Moral Thinking
    92. (24) Lewis, D., 1986, Philosophical Papers
    92. (24) Quine, W. V. O., 1970, Philosophy of Logic
    100. (23) Carnap, Rudolf, 1950, Empiricism, Semantics, and Ontology
    100. (23) Cartwright, Nancy, 1983, How the laws of physics lie
    100. (23) Gilligan, Carol, 1982, In a Different Voice
    100. (23) Griffin, James, 1986, Well-Being: its Meaning, Measurement, and Moral Importance
    100. (23) Kitcher, Philip, 1993, The Advancement of Science
    100. (23) Putnam, Hilary, 1981, Reason, Truth and History
    100. (23) Savage, Leonard J., 1954, The Foundations of Statistics
    100. (23) Searle, John R., 1969, Speech Acts
    100. (23) Shafer-Landau, Russ, 2005, Moral Realism
    100. (23) Spirtes, Peter, Clark Glymour, and Richard Scheines, 1993, Causation, Prediction, and Search
    100. (23) Stalnaker, Robert C., 1968, A Theory of Conditionals
    100. (23) Turing, Alan M., 1936 [1965], On Computable Numbers, with an Application to the Entscheidungsproblem
    112. (22) Davidson, Donald, 1963. Actions, Reasons, Causes
    112. (22) Dretske, Fred, 1995, Naturalizing the Mind
    112. (22) Fodor, Jerry A., 1983, Modularity of Mind
    112. (22) Machamer, Peter, Lindley Darden, and Carl F. Craver, 2000, Thinking about Mechanisms
    112. (22) Street, Sharon, 2006, A Darwinian Dilemma for Realist Theories of Value
    112. (22) van Fraassen, Bas C., 1989, Laws and Symmetry
    112. (22) Zalta, Edward N., 1983, Abstract Objects
    119. (21) Alcoff, Linda Martin, 2006. Visible Identities
    119. (21) Brandt, Richard B., 1979, A Theory of the Good and the Right
    119. (21) Cartwright, Nancy, 1999, The Dappled World
    119. (21) Dawkins, Richard, 1976, The Selfish Gene
    119. (21) Dworkin, Ronald, 1986, Law's Empire,
    119. (21) Field, Hartry, 1989, Realism, Mathematics and Modality
    119. (21) Fodor, Jerry A., 1974, Special Sciences (or: The Disunity of Science as a Working Hypothesis)
    119. (21) Gettier, Edmund L., 1963, Is Justified True Belief Knowledge?
    119. (21) Longino, H. 2001, The Fate of Knowledge
    119. (21) Nussbaum, Martha C., 2000. Women and Human Development
    119. (21) Okin, Susan Moller, 1989, Justice, Gender, and the Family
    119. (21) Sober, Elliott and David Wilson, 1998, Unto Others
    119. (21) Strawson, Peter F., 1962, Freedom and Resentment
    119. (21) Tye, Michael, 1995, Ten Problems of Consciousness
    119. (21) Walzer, Michael, 1983, Spheres of Justice
    119. (21) Wiggins, David, 1980, Sameness and Substance
    135. (20) Austin, J.L., 1962, How to Do Things with Words
    135. (20) Chisholm, Roderick M., 1957, Perceiving
    135. (20) Dancy, Jonathan, 2004, Ethics Without Principles
    135. (20) Darwall, Stephen, 2006. The Second-Person Standpoint
    135. (20) Davidson, Donald, 1984, Inquiries into truth and interpretation
    135. (20) Dennett, Daniel C., 1987, The Intentional Stance
    135. (20) Dworkin, Ronald, 2000. Sovereign Virtue
    135. (20) Feyerabend, Paul K., 1975, Against Method
    135. (20) Gödel, Kurt, 1931, Über formal unentscheidbare Sätze der Principia Mathematica und verwandter Systeme I
    135. (20) Husserl, Edmund, 1900-01, Logische Untersuchungen
    135. (20) Quine, Willard Van Orman, 1953, From A Logical Point of View
    135. (20) Reichenbach, Hans, 1938, Experience and Prediction
    135. (20) Rorty, Richard, 1979, Philosophy and the Mirror of Nature
    135. (20) Rosen, Gideon, 2010, Metaphysical Dependence
    135. (20) Wright, Crispin, 1983, Frege's Conception of Numbers as Objects
    135. (20) Zalta, Edward N., 1988, Intensional Logic and the Metaphysics of Intentionality
    151. (19) Anderson, Alan and Nuel Belnap, 1975, Entailment: The logic of relevance and necessity
    151. (19) Blackburn, Simon, 1984. Spreading the Word
    151. (19) Blackburn, Simon, 1993, Essays in Quasi-Realism
    151. (19) Chisholm, Roderick M., 1976, Person and Object
    151. (19) Craver, Carl F., 2007, Explaining the Brain
    151. (19) Fischer, John Martin and Ravizza, Mark, 1998. Responsibility and Control
    151. (19) Grice, H. P., 1975, Logic and Conversation
    151. (19) Hintikka, Jaakko, 1962, Knowledge and Belief
    151. (19) Keynes, John Maynard, 1921, A Treatise on Probability
    151. (19) Lewis, David, 1979, Attitudes De Dicto and De Se
    151. (19) Parsons, Terence, 1980, Nonexistent Objects
    151. (19) Pogge, Thomas, 2002 [2008], World Poverty and Human Rights
    151. (19) Priest, Graham, 1987, In Contradiction
    151. (19) Salmon, Nathan, 1986, Frege's Puzzle
    151. (19) Sider, Theodore, 2001, Four-Dimensionalism
    151. (19) Tarski, A., 1983, Logic, Semantics, Metamathematics
    151. (19) Thomasson, Amie L., 1999, Fiction and Metaphysics
    151. (19) Williamson, Timothy, 2013. Modal Logic as Metaphysics
    169. (18) Armstrong, D., 1989, Universals: An Opinionated Introduction
    169. (18) Barnes, Jonathan, 1982, The Presocratic Philosophers
    169. (18) Chisholm, Roderick M., 1966, Theory of Knowledge
    169. (18) Fodor, J., 1992, A Theory of Content and Other Essays
    169. (18) Gibbard, Allan, 2003, Thinking How to Live
    169. (18) Goodman, Nelson, 1968, Languages of Art
    169. (18) Hacking, Ian, 1983, Representing and Intervening
    169. (18) Harman, Gilbert, 1986, Change in View
    169. (18) Hilbert, David and Wilhelm Ackermann, 1928, Grundzüge der Theoretischen Logik
    169. (18) Kahneman, Daniel, 2011, Thinking, Fast and Slow
    169. (18) Kittay, Eva Feder, 1999, Love's Labor
    169. (18) Lewis, David K., 1991, Parts of Classes
    169. (18) Lewis, David, 1973, Causation
    169. (18) Moore, G. E., 1912. Ethics
    169. (18) Noë, Alva, 2004, Action in Perception
    169. (18) Prior, Arthur N., 1967, Past, Present and Future
    169. (18) Salmon, Wesley, 1984, Scientific Explanation and the Causal Structure of the World
    169. (18) Schaffer, Jonathan, 2009, On What Grounds What
    169. (18) Searle, John R., 1992, The Rediscovery of the Mind
    169. (18) Stich, Stephen P., 1983, From folk psychology to cognitive science
    169. (18) Taylor, Charles, 1989, Sources of the Self
    169. (18) Walton, Kendall, 1990, Mimesis as Make-Believe
    169. (18) Wright, Crispin, 1992, Truth and Objectivity
    192. (17) Annas, Julia, 1993, The Morality of Happiness
    192. (17) Anscombe, G.E.M., 1958, Modern Moral Philosophy
    192. (17) Benacerraf, Paul, 1973, Mathematical Truth
    192. (17) Carnap, Rudolf, 1928. Der logische Aufbau der Welt
    192. (17) Davidson, Donald, 1970, Mental Events
    192. (17) Dretske, Fred, 1988, Explaining behavior
    192. (17) Field, Hartry, 1980, Science Without Numbers
    192. (17) Goldman, Alvin, 1979, What is Justified Belief?
    192. (17) Graham, Angus C., 1989, Disputers of the Tao
    192. (17) Grice, H. P., 1957, Meaning
    192. (17) Guthrie, W.K.C., 1962-1981, A History of Greek Philosophy
    192. (17) Hooker, Brad, 2000, Ideal Code, Real World
    192. (17) Howson, Colin and Peter Urbach, 2006, Scientific Reasoning
    192. (17) Hull, David L., 1988, Science as a Process
    192. (17) Kagan, Shelly, 1989, The Limits of Morality
    192. (17) Kim, Jaegwon, 1998, Mind in a Physical World
    192. (17) Kleene, Stephen Cole, 1952, Introduction to Metamathematics
    192. (17) Lewis, David, 1980, A Subjectivist's Guide to Objective Chance
    192. (17) List, Christian and Philip Pettit, 2011, Group Agency
    192. (17) MacKinnon, Catherine, 1989, Towards a Feminist Theory of the State
    192. (17) Marr, David, 1982, Vision
    192. (17) Peacocke, Christopher, 1992, A Study of Concepts
    192. (17) Plantinga, Alvin, 2000, Warranted Christian Belief
    192. (17) Ross, W.D., 1939, Foundations of Ethics
    192. (17) Russell, B., 1914, Our Knowledge of the External World
    192. (17) Schneewind, J. B., 1998. The Invention of Autonomy
    192. (17) Tarski, Alfred, 1935, The Concept of Truth in Formalized Languages
    192. (17) van Inwagen, Peter, 1983. An Essay on Free Will
    192. (17) Von Neumann, John and Oskar Morgenstern, 1944, Theory of Games and Economic Behavior
    221. (16) Adams, Robert Merrihew, 1994, Leibniz
    221. (16) Armstrong, D. M., 1978, Universals and Scientific Realism
    221. (16) Axelrod, Robert and William D. Hamilton, 1981, The Evolution of Cooperation
    221. (16) Butler, Judith, 1993. Bodies That Matter
    221. (16) Churchland, Paul M., 1981, Eliminative materialism and the propositional attitudes
    221. (16) Clark, Andy and David J. Chalmers, 1998, The Extended Mind
    221. (16) Dummett, Michael, 1991, The Logical Basis of Metaphysics
    221. (16) Fine, Kit, 2001, The Question of Realism
    221. (16) Frankfurt, Harry, 1988. The Importance of What We Care About
    221. (16) Frege, Gottlob, 1918/1956, The Thought: A Logical Inquiry
    221. (16) Geach, Peter, 1962, Reference and Generality
    221. (16) Gödel, Kurt, 1944, Russell's Mathematical Logic
    221. (16) Hare, R. M., 1963. Freedom and Reason
    221. (16) Horgan, Terence and John Tienson, 2002, The Intentionality of Phenomenology and the Phenomenology of Intentionality
    221. (16) Irwin, Terence. H., 2008, The Development of Ethics
    221. (16) Joyce, James M., 1999, The Foundations of Causal Decision Theory
    221. (16) Kane, Robert, 1996, The Significance of Free Will
    221. (16) Lipton, Peter, 1971 [2003], Inference to the Best Explanation
    221. (16) Lloyd, Genevieve, 1984, The Man of Reason
    221. (16) McMahan, Jeff, 2002, The Ethics of Killing
    221. (16) Mellor, D.H., 1981, Real Time
    221. (16) Perry, John, 1979, The Problem of the Essential Indexical
    221. (16) Popper, Karl, 1962. Conjectures and refutations
    221. (16) Raz, J., 1990. Practical reason and norms
    221. (16) Russell, Bertrand, 1927, The Analysis of Matter
    221. (16) Sandel, Michael J., 1982. Liberalism and the Limits of Justice
    221. (16) Scheffler, Samuel, 1982, The Rejection of Consequentialism
    221. (16) Stalnaker, Robert, 1978, Assertion
    221. (16) Stevenson, Charles L., 1944, Ethics and Language
    221. (16) Swinburne, Richard, 1977, The Coherence of Theism
    221. (16) Tye, Michael, 2000, Consciousness, Color, and Content
    221. (16) Williams, Bernard, 1981, Moral Luck
    221. (16) Williams, George C., 1966, Adaptation and Natural Selection